rezplugins loading order

[predat]

Hi @nerdvegas,

For now, Rez plugins are loaded first and after custom plugins.

I'm trying to override 'filesystem' plugin behavior but without creating a custom 'filesystem' plugin.
I simply copy 'rezplugins/package_repository/filesystem.py', add a custom 'plugin_path' to 'rezconfig.py' and modifing this plugin.
But rez loads internal 'filesystem' plugin and never loads mine...

I believe normal behavior for rez plugins system would be to load custom plugins at first and if it does not exist then it loads its own plugins afterwards...

What do you think ?